Dielectric Anisotropy in the Charge-Density-Wave State of K0.3MoO3

被引：13
作者：
Shu-Nan, Masafumi [1 ]
Maki, Makoto [1 ]
机构：
[1] Saga Univ, Dept Phys, Saga 8408502, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2011年 / 80卷 / 08期
关键词：
charge density wave; dielectric relaxation; anisotropy; inter-chain coupling; commensurability; K0.3MoO3; BLUE BRONZE; LOW-TEMPERATURE; K0.30MOO3; PHASE; EXCITATIONS; (TASE4)2I;
D O I：
10.1143/JPSJ.80.084706
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Low-frequency dielectric response of the charge-density-wave (CDW) state has been studied in three orthogonal directions of K0.3MoO3. Broad relaxation at radio frequencies is observed both in the CDW-chain axis and in the interchain directions, although the dielectric strength is much smaller and the inductive response at dc biases above the threshold electric field is broader in the latter case. These results suggest that the phason excitations survive in the interchain direction in spite of the commensurability-pinning effects.
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页数：4
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